That feels like an argument that could be applied to web2 too though, and it falls apart there too: It’s never been easier to spin up some servers and whip up a basic social media site or search engine or online store, but it’d still be hard to displace Facebook, Google or Amazon. The problem isn’t with the ease of starting a competitor, it’s the psychological and social forces that cause people to prefer having one default place where they can go for a certain thing.